JP6564261B2 - 半田ジョイントを有する半導体素子 - Google Patents
半田ジョイントを有する半導体素子 Download PDFInfo
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Description
前記第1バリア層は、ニッケル(Ni)を含み、前記第2バリア層は、ビスマス(Bi)を含むことが好ましい。
その際に、高温半田31内の、仕上げ層25又は導電性パッド23と接する領域に第1金属間化合物33が形成される。
高温半田31の水平幅は導電性パッド23に近くなるほど拡張される。高温半田31の側面は低温半田51の側面と異なる形状を有する。高温半田31の側面は前記バリア層45に近くなるほど導電性パッド23の上部表面に対して垂直に近いプロファイルを有する。高温半田31の側面は導電性パッド23に近くなるほど凹状のプロファイルを有する。
14 フィルム
21、22、121、122 半導体パッケージ
23、123 導電性パッド
25、125 仕上げ層
27、127 パッケージ絶縁膜
31、131 高温半田
33、35、55、133、135、155 金属間化合物
37、57、137、157 拡散領域
39、139 側面酸化物
41、42、43、45、141、142、143、145 バリア層
51 低温半田
138 フラックス残渣
2100 電子システム
2110 ボディ
2120、2414 マイクロプロセッサ
2130 電源部
2140 機能ユニット
2150 ディスプレイコントローラ
2160 ディスプレイ
2170 外部装置
2180 通信ユニット
2400 電子システム
2412 メモリシステム
2416 RAM
2418 ユーザインタフェース
2420 バス
Claims (18)
- 導電性パッドと、
前記導電性パッド上に形成される高温半田と、
前記高温半田上に形成され、前記高温半田よりも低い融点を有する低温半田と、
前記高温半田と前記低温半田との間に形成されるバリア層と、を含み、
前記高温半田内のSn含有量が前記低温半田よりも高く、
前記高温半田の側面に形成された側面酸化物をさらに含むことを特徴とする半導体素子。 - 前記高温半田が純錫を含むことを特徴とする請求項1に記載の半導体素子。
- 前記高温半田が90wt%以上のSn含有量を有する混合物を含むことを特徴とする請求項1に記載の半導体素子。
- 前記低温半田がフラックスを含み、前記高温半田がフラックスを含まない、ことを特徴とする請求項1に記載の半導体素子。
- 前記側面酸化物がSnOを含むことを特徴とする請求項1に記載の半導体素子。
- 前記高温半田の側面が凹状(concave)のプロファイルを有し、前記低温半田の側面が凸状(convex)のプロファイルを有することを特徴とする請求項1に記載の半導体素子。
- 前記高温半田の側面のプロファイルは、前記バリア層に隣接する領域において、前記導電性パッドの上面に対して実質的に直線的かつ垂直であり、前記導電性パッドに隣接する領域において、凹状であることを特徴とする請求項1に記載の半導体素子。
- 前記高温半田の側面は、前記導電性パッドの上面に対して実質的に直線的かつ垂直なプロファイルを有し、前記低温半田の側面は、凸状のプロファイルを有することを特徴とする請求項1に記載の半導体素子。
- 前記バリア層と前記高温半田との間に第2金属間化合物(Inter−Metallic Compound)と、
前記バリア層と前記低温半田との間に第3金属間化合物と、をさらに含むことを特徴とする請求項1に記載の半導体素子。 - 前記バリア層は、
第1バリア層と、
前記第1バリア層下に形成される第2バリア層と、を含み、
前記第1バリア層は、前記第2バリア層よりも厚いことを特徴とする請求項9に記載の半導体素子。 - 前記第1バリア層は、ニッケル(Ni)を含み、前記第2バリア層は、ビスマス(Bi)を含むことを特徴とする請求項10に記載の半導体素子。
- 前記第2金属間化合物と前記高温半田との間に、第1拡散領域をさらに含み、
前記第1拡散領域は、前記第2バリア層及び前記高温半田の物質を含むことを特徴とする請求項10に記載の半導体素子。 - 前記第1バリア層上に形成される第3バリア層をさらに含み、
前記第1バリア層は、前記第2バリア層と前記第3バリア層との間に形成され、前記第3バリア層は、Biを含むことを特徴とする請求項10に記載の半導体素子。 - 前記第3金属間化合物と前記低温半田との間に形成される第2拡散領域をさらに含み、
前記第2拡散領域は、前記第3バリア層及び前記低温半田の物質を含むことを特徴とする請求項13に記載の半導体素子。 - 半導体パッケージの一面に形成される導電性パッドと、
前記導電性パッド上に形成される高温半田と、
前記高温半田上に形成され、前記高温半田よりも低い融点を有する低温半田と、
前記高温半田と前記低温半田との間に形成されるバリア層と、を含み、
前記高温半田の側面は、前記低温半田の側面と異なる形状を有し、
前記高温半田の側面は、凹状のプロファイルを有することを特徴とする半導体素子。 - 半導体パッケージの一面に形成される導電性パッドと、
前記導電性パッド上に形成される高温半田と、
前記高温半田上に形成され、前記高温半田よりも低い融点を有する低温半田と、
前記高温半田と前記低温半田との間に形成されるバリア層と、を含み、
前記高温半田の側面は、前記低温半田の側面と異なる形状を有し、
前記高温半田の側面のプロファイルは、前記バリア層に隣接する領域において、前記導電性パッドの上面に対して実質的に直線的かつ垂直であり、前記導電性パッドに隣接する領域において、凹状であることを特徴とする半導体素子。 - 半導体パッケージの一面に形成される導電性パッドと、
前記導電性パッド上に形成される高温半田と、
前記高温半田上に形成され、前記高温半田よりも低い融点を有する低温半田と、
前記高温半田と前記低温半田との間に形成されるバリア層と、を含み、
前記高温半田の側面は、前記低温半田の側面と異なる形状を有し、
前記低温半田の側面は、凸状のプロファイルを有することを特徴とする半導体素子。 - 半導体パッケージの一面に形成される導電性パッドと、
前記導電性パッド上に形成される高温半田と、
前記高温半田上に形成され、前記高温半田よりも低い融点を有する低温半田と、
前記高温半田と前記低温半田との間に形成されるバリア層と、を含み、
前記高温半田の側面は、前記低温半田の側面と異なる形状を有し、
前記高温半田の側面は、前記導電性パッドの上面に対して実質的に直線的かつ垂直のプロファイルを有することを特徴とする半導体素子。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140095964A KR102192195B1 (ko) | 2014-07-28 | 2014-07-28 | 솔더 조인트를 갖는 반도체 소자 및 그 형성 방법 |
| KR10-2014-0095964 | 2014-07-28 |
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| JP2016032104A JP2016032104A (ja) | 2016-03-07 |
| JP2016032104A5 JP2016032104A5 (ja) | 2018-08-09 |
| JP6564261B2 true JP6564261B2 (ja) | 2019-08-21 |
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| US (1) | US9646945B2 (ja) |
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| KR102601553B1 (ko) * | 2016-12-08 | 2023-11-15 | 삼성전자주식회사 | 반도체 발광 소자 |
| DE102017104276B4 (de) * | 2017-03-01 | 2020-01-16 | Osram Opto Semiconductors Gmbh | Verfahren zum Befestigen eines Halbleiterchips auf einem Leiterrahmen und elektronisches Bauelement |
| US10593638B2 (en) * | 2017-03-29 | 2020-03-17 | Xilinx, Inc. | Methods of interconnect for high density 2.5D and 3D integration |
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| JP2016032104A (ja) | 2016-03-07 |
| KR20160013737A (ko) | 2016-02-05 |
| KR102192195B1 (ko) | 2020-12-17 |
| US9646945B2 (en) | 2017-05-09 |
| US20160027751A1 (en) | 2016-01-28 |
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